shine wrote:The transom thickness is more than adequate. Transom is tabbed to hull side and botom with 2 layers of 12 oz. biax tape. Then 2 layers of 12 oz. 50" wide cloth over the transom - overlapping to the sides/bottom (over the tape)
I would make my stringers from 2 layers of laminated 3/8" with the joints staggered so that you have one continuous 3/4" stringer. Stringers are tabbed to hull with 2 layers of biax tape.
frames: 3/8" meranti spaced at around 30" - tabbed to hull with 12 oz Biax tape.
You will then epoxy glue cleats (little pieces of wood) to the top of the stringers and frames to provide glue area for the sole. I would prefer to glue the sole down in a couple pieces - so there is plenty of time to mix and apply the epoxy glue. Then the sole gets tabbed to the hull sides with the same 12 ox Biax tape. Sole can be 3/8" or 1/2". I would only put a light cloth on the top side of the sole.
Fillets for transom/stringers/frames/sole should be about 3/8" to 1/2" radius
you will need at least the following to get to the prime/paint stage:
-2 rolls of 12 oz. biax tape
-5 lbs of woodflour (for making glue and fillets)
-3 quarts of quick fair (or 1/2 lb or blended filler if you prefer to mix your own fairing putty)
-enough wide biax cloth to cover your transom as described above
-3 gallons of epoxy to start ( I will guess you may use 6 gallons total on the rebuild)
-plywood: make a drawing of all the parts so you can see how you will cut them out to make the most efficient use of the wood
Cool project and great posts!
Sorry, I just wanted to make sure I understand this because I'm in the process of doing the same right now to a 1962 PT-14 that was abandoned (shell only- no stringers, floor or cap):
By "tabbed" you mean covered over, as in fiberglassed with? So are the stringers bedded in thickened epoxy, then fillets put in and then tabbed?
The sole (floor) edges rest directly on the hull- should I put extra reinforcement to ease a hard spot under the edge or taper the sole edge or...?
Is the bottom of the sole (side that faces the stringers) painted with epoxy then screwed/glued to the top of the stringers?
Last question- do you think if I glassed 1/2" PVC/Divinycell foam to the inside of the hull, from the sole to the gunwales, throughout the inside-would it make it a more durable boat?
I saw this type of boat fishing 8+ miles offshore in Hawaii with two men aboard and they caught two 150 lbs+ ahi(tuna)(yeah, the boat was low in the water
) but the boat sure looked filmsy and flexed a bit when they hit the chop so I was hoping I could somehow make this one a little more durable/stiffer.
Mahalo for any info, Randy